Knowledge for a freer, safer sexuality

Safety and evidence

How we connect the characteristics of each position with scientific context, precautions and verifiable sources.

At educacionsexual.org, not every position needs the same explanation. When a characteristic may require additional context about anatomy, pain, pregnancy, mobility or other health considerations, we connect it with specific information and its sources.

8 areas documented

Verifiable sources

Relationships based on actual characteristics

View evidence areas

This information is general and educational. It does not certify a position as medically safe or replace an individual assessment by a healthcare professional.

Last editorial review: September 22, 2026

How the system works

A clear process based on the actual characteristics of each position.

Position characteristics Anatomy, interaction, depth, stimulation, mobility and other structured attributes.
Relevant context We identify when a characteristic calls for additional information.
Evidence and limitations We explain what is supported, what remains uncertain and what a source does not allow us to claim.
Sources and related positions We show the references used and the position pages for which that context is relevant.

A relationship does not mean that the position was studied directly in the cited research. It means that its characteristics make that evidence context relevant.

Safety and evidence areas

See what is currently known about each topic, its limitations and the positions for which it is relevant.

G-spot

what the evidence says

The “G-spot” is a widely used term for a sensitive area of the anterior vaginal wall. Scientific literature has not demonstrated a discrete anatomical structure with an agreed location, size and nature; sensitivity and response can vary from person to person.

What we know, limitations and sources

What we know

The anterior vaginal wall is associated with a complex set of anatomical structures, and some people report sensitivity in this area. The experience is not uniform and should be understood as variable.

What we cannot claim

It cannot be claimed that there is one single point that can be located in the same way in everyone, or that any position guarantees its stimulation, pleasure or orgasm.

Sources 2

EVID-001 O'Connell HE, Sanjeevan KV, Hutson JM. Anatomy of the clitoris. The Journal of Urology. 2005. PubMed (external website)
EVID-004 Vieira-Baptista P, et al. G-spot: Fact or Fiction? A Systematic Review. Sexual Medicine. 2021. PubMed (external website)

A-spot / AFE zone

limited evidence

The “A-spot” or AFE zone has been proposed as a term for a deep area of the anterior vaginal wall. The available evidence is limited and does not support treating it as a confirmed anatomical structure.

What we know, limitations and sources

What we know

The term comes from a published clinical proposal and is part of the vocabulary commonly used by some people and educational materials.

What we cannot claim

The available source does not confirm a distinct anatomical structure and does not support promising a specific response from adopting a particular position.

Source 1

CTX-001 Chua Chee Ann. A proposal for a radical new sex therapy technique… the AFE Zone Stimulation Technique. Sexual and Marital Therapy. 1997. Original article (external website)

Anatomical variability

Vaginal shape, axis and dimensions vary considerably from person to person. As a result, depth and comfort may differ even when using the same position.

What we know, limitations and sources

What we know

Anatomical and imaging studies show genuine variation in shape and dimensions. Angle, depth and comfort may require individual adjustments.

What we cannot claim

These studies do not predict any one person’s experience and do not establish a universally ideal depth, angle or position.

Sources 2

EVID-002 Barnhart KT, et al. Baseline dimensions of the human vagina. Human Reproduction. 2006. PubMed (external website)
EVID-003 Luo J, et al. Quantitative analyses of variability in normal vaginal shape and dimension on MR images. International Urogynecology Journal. 2016. PubMed (external website)

Pain and deep penetration

If penetration causes deep, recurrent or persistent pain, it is advisable to reduce the depth or stop the activity. If the problem continues, a professional assessment is recommended.

What we know, limitations and sources

What we know

Pain during penetration can have different causes. Adjusting the angle or depth, communicating discomfort and stopping when necessary are prudent measures.

What we cannot claim

A page cannot diagnose the cause of pain, confirm that a position is safe for everyone or replace an individual healthcare assessment.

Sources 2

EVID-005 Carlson K, Mikes BA. Dyspareunia. StatPearls / NCBI Bookshelf. Updated 2026. PubMed (external website)
EVID-006 American College of Obstetricians and Gynecologists. Female Sexual Dysfunction: Practice Bulletin No. 213. Obstetrics & Gynecology. 2019. PubMed (external website)

Lubrication and comfort

When there is dryness, friction or discomfort, a suitable lubricant may make sexual activity easier and improve comfort. Its use is not universally necessary.

What we know, limitations and sources

What we know

Lubrication needs vary between people and over time. Reducing friction and adjusting the pace can improve comfort when dryness or discomfort occurs.

What we cannot claim

It cannot be claimed that everyone needs lubricant, that every product is suitable for every use, or that lubrication alone treats persistent pain.

Sources 2

EVID-007 World Health Organization. WHO recommendations on self-care interventions: availability of lubricants during sexual activity. 2024. WHO (external website)
EVID-008 Vanderschee R, Kostov S. Approach to lubricant use for sexual activity. Canadian Family Physician. 2025. PubMed (external website)

Pregnancy

In a healthy pregnancy, most sexual activity is generally safe. As the body changes, positions may need to be adapted, while comfort and professional advice should always take priority.

What we know, limitations and sources

What we know

ACOG states that most sexual activity is safe during healthy pregnancies and recommends trying comfortable positions as the abdomen grows. If there are complications or concerns, the healthcare professional overseeing the pregnancy should be consulted.

What we cannot claim

The label “Suitable during pregnancy” is not an individual medical clearance and cannot by itself account for complications, symptoms or specific instructions from the obstetric care team.

Source 1

EVID-009 American College of Obstetricians and Gynecologists. Is it safe to have sex during pregnancy? Ask ACOG. 2021. ACOG (external website)

Pelvic floor

Pelvic-floor function affects support, control and comfort. If there is tenderness, pain or recent recovery, intensity and position should be adapted to the individual.

What we know, limitations and sources

What we know

Pelvic-floor muscle training can help with certain control problems, and some studies suggest benefits for sexual function. Correctly identifying, contracting and relaxing these muscles may require professional guidance.

What we cannot claim

Not every symptom indicates muscle weakness, and strengthening is not always the appropriate response. A position or general recommendation does not replace pelvic-floor physiotherapy or a healthcare assessment.

Source 1

EVID-010 National Institute of Diabetes and Digestive and Kidney Diseases. Kegel Exercises. Last reviewed November 2021. NIDDK (external website)

Low-back pain, joints and mobility

When low-back pain, osteoarthritis or limited mobility is present, options that allow support, low impact and adjustments to range of motion are often more manageable.

What we know, limitations and sources

What we know

Joint pain and responses to movement vary. Gentle activity, adaptations, and work with a physiotherapist or occupational therapist may help identify movements suited to a particular condition.

What we cannot claim

Low-impact or limited-mobility labels do not guarantee freedom from pain or turn a position into a treatment. They also cannot diagnose the cause of a limitation.

Source 1

EVID-011 Arthritis Foundation. Finding the Best Joint Pain Relief for You: 24 Treatment Options. Arthritis Foundation (external website)

Each area includes a summary of what we know, what we cannot claim, its sources and a complete list of the positions for which that context is relevant.

Explore all areas

Transparency

What this relationship means

A position appears in an area when its structured data meet an explicit rule. The relationship indicates educational relevance; it does not diagnose, prescribe or guarantee a particular experience.

Data, not isolated words

We prioritize internal tags and factors over searches in descriptions or free-text matches.

One canonical identity

The relationship is stored only once per position. Language is applied only when displaying content and counting published positions.

Live counts

If a position’s factors, tags or publication status change, the relationship and counts are recalculated automatically.

Context matters

Adding a reference is not enough

A source can be rigorous and still not answer every question about a position. That is why we separate four elements: the signal that makes a topic relevant, what the literature supports, its limitations and the specific reference.

This approach avoids presenting hypotheses as certainties and helps us update the content when the data change or new evidence emerges.

Relevance to the context described
Scope clearly explained
Limitations shown alongside the evidence
Accessible, traceable source